Address-printing machine



Aug. 20, 194 J. KRELL SS-PRINTING MACHINE Filed Feb. 7, 193a ADDRE 2Sheets-Sheet l Jnramar: K re.

Aug. 20, 1940. v J. KRELL 2,212,443

ADDRESS-PRINTING MACHINE v Filed Feb. 7, 1938 2 Sheets-Sheet 2 Jmenfar': J hre// Patented Aug. 20, 1940 UNITED STATES 2,212,443ADDRESS-PRINTING MACHINE Joseph Krell, Berlin-Zehlendorf, Germany, as-

signor to Adrema Maschinenbauges. m. b. IL,

Berlin, Germany Application February 7, 1938, Serial No. 189,198 InFrance February 27, 1937 3 Claims.

My invention relates to printing machines, such as address-printingmachines, for manual operation.

More particularly, my invention relates to that type of printingmachines in which a printing arm is pivotally mounted to oscillate upand down, and means is provided for feeding printing plates along atrack and past a printing station intermittently in sequence and intheir. longitudinal direction.

In machines of this kind, as designed heretofore, a handle is providedat the free end of the printing arm by which the operator lowers theprinting head onto the printing plate. It is ob vious that the momentumwhich can be imparted to the descending printing head in this way, isnot great.

It is an object of my invention to improve a machine of the kinddescribed, with a view to imparting a high momentum to the descendingprinting head with a minimum efiort on the part of the operator.

To this end, in combination with a table and the usual printingarm.which is pivoted on the table, I provide a manual operating leverwhich is also pivotally mounted on the table, and preferably fulcrumedon the same pivot with the printing arm, and arrange this lever so thatits effective length is greater than the distance of the printing headat the free end of the printing arm from the axis of its pivot.

By these means, a leverage in the favor of the operator is produced whocan, with a comparatively slight effort, exert a high momentum at 5 thedescending printing head.

In the accompanying drawings an addressprinting machine equipped with mynovel operating mechanism is illustrated in perspective by way ofexample.

In the drawings Fig. 1 is an illustration of the complete machine,showing the hand lever in elevated position,

Fig. 2 is a detail illustration showing the hand lever in depressedposition,

Fig. 3 is a diagrammatic plan view of the machine.

Referring now to the drawings, and first to Fig. 1, this shows themachine from its front end,

i. e., as viewed from the operators stand. I is the frame, and I is thetable, of the machine. 4 is the printing arm which is mounted tooscillate up and down about a pivot 5 in the frame I, and is equippedwith a printing head 3 and a printing pad 2. The pivoted end of theprinting arm is forked in known manner. 4 is a tail which depends fromthe printing arm, and 6 is a spring connected to the tail and anchoredbelow the table 1. The spring tends to hold the printing arm 4 in theelevated position shown in Fig. 5 and to return it into such positionwhen it has been lowered. 8 is a track in the table I along which theprinting plates II from a supply in a magazine I2 are fed toward theprinting station 9 intermittently by means operatively con- 1 nected tothe hand lever 15, as will be described. At the printing station 9, aribbon l0 extends across the track 8. The plates which have been printedat 9, fall into a hopper l4 at the left side l3 of the frame I belowwhich one of the 15 tables 56 is arranged.

The hand lever I5 is arcuate, and preferably pivoted about the pivot 5,with its boss within the forked end of the printing arm 4. A handle I6is secured to the free end of the lever I5. 20 As shown in Fig. 3, theeffective length a of the lever I5 is greater than the distance I) ofthe printing head 3 from the axis of the pivot 5, and in this manner thedesired leverage is produced and considerable momentum isimparted to the26 descending printing head 3. A tail I'I, Fig. 2, extends downwardlyfrom the boss of the lever l5, and a spring l8 tends to hold the leverIS in its erected position, as shown in full lines in Fig. 1. and indotted lines in Fig. 2, or to return the 30 lever into such position.The hand lever l5 and the printing arm 4 are connected by a clutch, asfollows: I!) is an abutment, or tooth, on the printing arm 4, and 20 isa pawl pivoted on the hand lever I5, for engaging the abutment I9. 22 is35 a curved rod which is pivotally connected to a tail 2| of the pawl 20at one end. The other end of the rod slides in a block 23 on the handlever l5 and is equipped with a press button 24.

A spring 25 placed on the rod 22 between the 0 block 23 and the button24 tends to hold the pawl 20 in its normal or clutching position inwhichthe pawl 20 is in contact with the abutment IS on the printing arm 4.

The means operatively connected to the hand 45 lever l5 for feeding theplates along the track includes a system designated by the numeral 26and including a cable or rod 26 connected to the tail I! at one end, andto a bellcrank pivoted below the table I at the other, and a linkconnecting the bellcrank to a slide 21 below the magazine H which isreciprocated in the directions of the arrow 28 when the hand lever I5 isoscillated. When the hand lever l5 returns into its normal positionunder the action of the spring [8 after hav- B6 ing been depressed byits handle IS, the slide 21 is advanced, i. .e., moved toward theprinting station 9, and carries along with it the lowermost 'plate I ifrom the magazine l2, shifting the plates in the track 8 for the lengthof one plate, and throwing the plate at the left-hand end of the lineinto the hopper l4.

Normally, the printing arm and the hand lever are held in the elevatedposition, Fig. 1, by their respective return springs 6 and I8, and theclutch I9, 20 is thrown in by the spring. 25 on the rod 2.2. When thehand lever I5 is depressed by its handle [6, the printing arm 4 islowered by the clutch, and that plate II which is at the printingstation 9 is printed on the envelope, sheet, or the like which has beenplaced on the ribbon Ii). During the depression of the hand lever l5 andthe descent of the printing arm 4, the slide 21 is retracted, i. e.,moved to the right in Fig.1,

station; 9 upon every depression of the lever i5,

and upon every return of the printing arm 4 and the hand lever I5 underthe action of their springs, a fresh plate II is advanced toward theprinting station 9 by the slide 21.

If it is desired to skip the plate at the station 9, pressure is exertedagainst the button 24, Fig. 2, the spring 25 is compressed and the rod22 moves the pawl beyond reach of the abutment [9 at the printing arm.In consequence, the printing arm is not lowered when the hand leve'r I5is depressed, and so the plate at the station 9 is skipped. However, thefeed of the plates is continued and a fresh plate is presented at thestation 9 upon every return of the lever l5 into its initial position bythe means 26, 21.

By selective operation and non-operation of the button 24, definiteplates from the supply are printed, and others skipped.

Preferably, a bufier 29, of leather or other material possessing littleresiliency, is placed on, or

inserted in, the table I, as shown in Fig. 2. A projection on thedescending hand lever I5 strikes the buffer when the lever is depressed.By these means, the sound of the blow the hand lever exerts against thetable i, is deadened, and so the machine operates without noise.

I claim:

1. A manually operated address-printing machine, comprising a table, apivot on the table, a printing arm fulcrumed on the pivot, a printinghead at'the free end of the arm, a manual operating lever for theprinting arm which lever is also pivoted on the table, means tending tohold the printing arm in its elevated position, and a one-way connectionbetween the operating lever and the printing arm for throwing the arminto printing position against said holding means.

2. A manually operated address-printing machine, comprising a table, apivot on the table, a printing arm fulcrumed on the pivot, a printinghead at the free end of the arm, a manual operating lever for theprinting arm which lever is also pivoted on the table, a track on thetable,

. means for feeding printing plates along the track past a printingstation, means connecting the lever with the plate feeding means, meanstending to hold the printing arm in its elevated position, an abutmenton the printing arm, a pawl pivoted on the lever and engageable behindone side of the abutment to couple the lever with the printing arm forthrowing the arm into printing position against said holding means, andmanually releasable means normally retaining the pawl against the sideof the abutment.

3. A manually operated address-printing machine, comprising a table, apivot on the table,

a printing arm fulcrumed on the pivot, a printing head at the free endof the arm, a manual operating lever for the printing arm which lever isalso pivoted on the table, a handle at the free end of the lever, atrack on the table, means for feeding printing plates along the trackpast a printing station, means connecting the lever with the platefeeding means, means tending to hold the printing arm in its elevatedposition, an abutment on the printing arm, a pawl pivoted on the leverand engageable behind oneside of the abutment to couple the lever withthe printing arm for throwing the arm into printing position againstsaid holding means, and manually releasable means including a linksupported on the manual operating lever and connected at one end withthe pawl, a manipulating member arranged on the other end of the linkadjacent the handle, and spring means normally tending to move the linkto hold the pawl against the side of the abutment, for controlling theoneway connection of the lever and the printing arm.

JOSEPH KRELL.

